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PET/CT today: system and its impact on cancer diagnosis Tsukamoto E; Ochi SAnn Nucl Med 2006[May]; 20 (4): 255-67Over the past six years, PET/CT has spread rapidly and replaced conventional PET. Although PET/CT is a combination of PET for functional information and CT for morphological information, their combination is synergistic. PET/CT fusion images result in higher diagnostic accuracy with fewer equivocal findings. This results in a greater impact on cancer diagnosis. With attenuation correction performed by the CT component, PET/CT can provide higher quality images over shorter examination times than conventional PET. As with all modalities, PET/CT has several characteristic artifacts such as misregistration due to respiration, overattenuation correction due to metals, etc. Awareness of these pitfalls will help the imaging physician use PET/CT effectively in daily practice.|Humans[MESH]|Image Enhancement/*instrumentation/*methods[MESH]|Image Interpretation, Computer-Assisted/methods[MESH]|Neoplasms/*diagnosis[MESH]|Positron-Emission Tomography/*instrumentation/*methods/trends[MESH]|Subtraction Technique[MESH]|Tomography, X-Ray Computed/*instrumentation/*methods/trends[MESH] |
